Question

使用2011年Best Way to Structure Partial Views

上的stackoverflow答案

我已经构建了一个带侧边栏，导航和内容区域的仪表板基本视图，应该在CI _output（）上插入内容，类似于下面的代码示例。当我单独运行$ this-＆gt; load-＆gt; view（'dashboard / base'）时，我得到了仪表板，但在使用_output（）实现MY_Controller后，它显示数据正确进入，但仪表板/基座视图永远不会显示相反，我得到一个空白页面，空的HTML标记，没有错误可以遵循。为了清楚起见，如果我从MY_Controller _output（）获取代码并将其放入我的Dashboard控制器中，它可以正常工作。所以这不是视图，它可以与所有的子视图等一起工作。

好的，没有错误可以检查php.ini

error_reporting设置为E_ALL
display_error设置为On

好的，我们可以检查类似命名的类和/或视图吗？刮掉所有东西只有：

1个控制器（仪表板），
1个型号（Dashboard_model）和
用于简单构建仪表板的15个视图
- 具有相似命名视图（页眉和页脚）的2个视图，但它们由文件夹结构分隔，并且都未被使用

...所以没有类别或观点发生冲突

好的，让我们检查一下stackoverflow问题/答案：

确保MY_Controller通过source进入应用程序/核心...确定
尝试设置ini_set（'display_errors'，1）;通过source ...没有显示错误
尝试启用CI登录并通过source将其设置为4，日志中没有错误

记录了这个：

DEBUG - 2014-08-12 09:04:09 --> Config Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Hooks Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Utf8 Class Initialized
DEBUG - 2014-08-12 09:04:09 --> UTF-8 Support Enabled
DEBUG - 2014-08-12 09:04:09 --> URI Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Router Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Output Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Security Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Input Class Initialized
DEBUG - 2014-08-12 09:04:09 --> XSS Filtering completed
DEBUG - 2014-08-12 09:04:09 --> XSS Filtering completed
DEBUG - 2014-08-12 09:04:09 --> CRSF cookie Set
DEBUG - 2014-08-12 09:04:09 --> Global POST and COOKIE data sanitized
DEBUG - 2014-08-12 09:04:09 --> Language Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Loader Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Controller Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Session Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Helper loaded: string_helper
DEBUG - 2014-08-12 09:04:09 --> Encrypt Class Initialized
DEBUG - 2014-08-12 09:04:09 --> Database Driver Class Initialized
ERROR - 2014-08-12 09:04:09 --> Severity: 8192  --> mysql_pconnect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead D:\htdocs\example\app\codeigniter\system\database\drivers\mysql\mysql_driver.php 91
DEBUG - 2014-08-12 09:04:09 --> Session routines successfully run
DEBUG - 2014-08-12 09:04:09 --> Helper loaded: security_helper
DEBUG - 2014-08-12 09:04:09 --> Helper loaded: url_helper
DEBUG - 2014-08-12 09:04:09 --> Helper loaded: utility_helper
DEBUG - 2014-08-12 09:04:09 --> File loaded: ../codeigniter/application/example/views/dashboard/content/reporting.php
DEBUG - 2014-08-12 09:04:09 --> File loaded: ../codeigniter/application/example/views/dashboard/header.php
DEBUG - 2014-08-12 09:04:09 --> File loaded: ../codeigniter/application/example/views/dashboard/sidebar.php
DEBUG - 2014-08-12 09:04:09 --> File loaded: ../codeigniter/application/example/views/dashboard/topnav_left.php
DEBUG - 2014-08-12 09:04:09 --> File loaded: ../codeigniter/application/example/views/dashboard/topnav_right.php
DEBUG - 2014-08-12 09:04:09 --> File loaded: ../codeigniter/application/example/views/dashboard/footer.php
DEBUG - 2014-08-12 09:04:09 --> File loaded: ../codeigniter/application/example/views/dashboard/base.php
DEBUG - 2014-08-12 09:04:09 --> Final output sent to browser
DEBUG - 2014-08-12 09:04:09 --> Total execution time: 0.0512

好的，所以确实没有错误...但我还有一个空白页？这是我的代码示例，以防它对我以外的其他人更有用，现在我觉得已经踩到了，有点苦，我无法弄明白：

Class Dashboard extends MY_Controller
{
    function __construct() {
        parent::__construct();   
    }

    public function index() {
        $this->load->view('dashboard/content/reports'); // only have "Hello World!" stub in view
    }
}

Class MY_Controller extends CI_Controller
{
    var $page_title = 'my page title';
    var $page_keywords = 'my keywords';
    var $page_description = 'my description';
    var $dashboard_title = 'my dashboard title';

    function __construct() {
        parent::__construct();
        $this->load->model('dashboard_model');
        $this->load->library('session');
        $this->load->helper('security');
        $this->load->helper('url');
        $this->load->helper('utility');
    }

    public function _output($content) {

        $data = array(
            'page_title' => $this->page_title,
            'page_keywords' => $this->page_keywords,
            'page_description' => $this->page_description,
            'dashboard_title' => $this->dashboard_title,
            'content' => &$content
        );

        print_r("<pre>");
        print_r($data);
        print_r("</pre>");

        $this->load->view('dashboard/base', $data);
    } // END public function _output
}

任何人都知道发生了什么事？

顺便说一下，为什么在我为此解决方案引用的示例中通过引用传递$ content？

Answer 1

如果您在课堂上使用_output（），它不会将您的数据回显到屏幕上，您需要自己动手操作，并且需要视图返回数据供您回显，因此请查看需要使用它的第三个参数。所以在你的班级中，最后一行输出应该是：

echo( $this->load->view('dashboard/base', $data, TRUE) );

CodeIgniter扩展控制器以将内容插入基本视图生成没有错误的空白页

1 个答案: